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Published: 30 April 2020
Fig. 7.2 Photograph of an injection-molded steel component with blisters due to trapped binder during thermal decomposition. A few of the blisters are identified. More
Book Chapter

By Debasis Chaira
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2024
DOI: 10.31399/asm.tb.pmamfa.t59400009
EISBN: 978-1-62708-479-6
... of each process, the materials for which they are used, and the powder characteristics that can be achieved. gas atomization centrifugal atomization electrolytic dissolution mechanical alloying metal oxide reduction powder milling thermal decomposition water atomization THE POWDER...
Book Chapter

By Kenneth A. Walsh, Edgar E. Vidal, Brajendra Mishra
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
..., whereas the other three halides are largely covalent. The fluoroberyllate anion is very stable. Beryllium fluoride is produced commercially by the thermal decomposition of diammonium tetrafluoroberyllate, (NH 4 ) 2 BeF 4 . The fluoride and the fluoroberyllates show a strong similarity to silica...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230055
EISBN: 978-1-62708-298-3
... the challenges encountered with each. beryllium electrolytic reduction hydrogen reduction thermal decomposition thermodynamics THE FUNDAMENTAL understanding of beryllium reduction thermodynamics is essential to effectively read and interpret the following chapters on beryllium extraction, chemical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290139
EISBN: 978-1-62708-319-5
... Binder removal occurs in two stages. Pore opening is the first stage, and several options are possible, such as binder sublimation, thermal decomposition, wicking, solvent dissolution, or catalytic depolymerization. Some structures are not saturated with binder, so first-stage removal is skipped...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290035
EISBN: 978-1-62708-319-5
... jetting. The chapter provides a detailed description of these constituents. The requirements of a binder as well as the factors determining the physical and thermal properties of polymers are discussed. Then, two factors associated with solvation of polymers, namely solubility parameter and wetting...
Image
Published: 01 August 2018
Fig. 10.57 Dilatometry measurements of the linear expansion (length change) of a steel slowly and rapidly cooled. During slow cooling the volume change associated with austenite decomposition happens at high temperatures, when the material is very ductile and has lower yield strength. Stresses More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780003
EISBN: 978-1-62708-281-5
..., such as thermal decomposition. As can be seen from Table 3 , it is dependent on both the elements and type of bonds involved. Bond energies for common bonds in polymers Table 3 Bond energies for common bonds in polymers Bond Bond energy kJ/mol kcal/g · mol C–C 350 83 C–H 410 99 C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780105
EISBN: 978-1-62708-281-5
... either absorbs or gives off at any given temperature. This technique is useful for measuring the T g and melt temperatures, T m , of a material, as well as the onset of thermal decomposition of blowing agents or other materials. Figure 25 is a representative DSC thermogram. Typical DSC examples...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240053
EISBN: 978-1-62708-251-8
... of free energy that governs whether or not a phase transformation is possible, and then the kinetic considerations that determine the rate at which transformations take place. The chapter also describes important solid-state transformations such as spinodal decomposition and martensitic transformation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740373
EISBN: 978-1-62708-308-9
... of powder production. These include reduction of oxides, precipitation from solution or from a gas, thermal decomposition, chemical embrittlement, hydride decomposition, and thermit reactions. The most widely used processes within this category include oxide reduction, precipitation from solution...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
... Abstract This article covers the thermal analysis and thermal properties of engineering plastics with respect to chemical composition, chain configuration, and/or conformation of the base polymers. The thermal analysis techniques covered are differential scanning calorimetry, thermogravimetric...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230093
EISBN: 978-1-62708-298-3
... Thermal Decomposition of Beryllium Hydroxide In thermogravimetric analysis tests, Duval and Duval [1948] showed that dehydroxylation of orthorhombic Be(OH) 2 begins at 220 °C (430 °F). The bulk of the water is quickly lost up to 280 °C (535 °F), when the composition lies approximately between...
Book Chapter

By C. Lee, J. Kim
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460209
EISBN: 978-1-62708-285-3
... up to bulk scale with advanced mechanical properties (e.g., high density, high strength, high hardness) and without oxidation, phase transformation, or decomposition of feedstock materials, there have been a number of studies on the application of the cold spray process to various industrial fields...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780359
EISBN: 978-1-62708-281-5
... and a reference as the material is heated or cooled ( Ref 5 ). The technique is used to evaluate thermal transitions within a material. Such transitions include melting, evaporation, crystallization, solidification, cross linking, chemical reactions, and decomposition. A typical DSC result is presented in Fig. 5...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780089
EISBN: 978-1-62708-281-5
.... Where the loss of additives such as plasticizers or antioxidants can damage a structure, decomposition profiles are excellent indicators of change. A comparison of the thermal decomposition of encapsulating materials using TGA is shown in Fig. 19 . Absolute classification of thermal stability...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410487
EISBN: 978-1-62708-265-5
... phenomena that could be directly attributed to chemical and microstructural features of steel. This chapter describes features of thermally or mechanically processed steel parts, namely, residual-stress distributions and distortion, that are not directly related to unique microstructural features...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780146
EISBN: 978-1-62708-281-5
... for plastics usage, there are chemical additives compounded into polymers that will react with the unpaired electron, interrupt the chain reaction, and postpone or at least greatly retard thermal decomposition. If thermal degradation is believed to be a contributing factor to failure, the type and amount...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560307
EISBN: 978-1-62708-353-9
... of the decomposition of austenite to the chemical composition and the austenite grain size. This approach is similar to that used to calculate the Jominy curve (see Chapter 3 ). Fig. 9-1 Schematic illustration of the effect of the decomposition of austenite during cooling on the transformation products present...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780159
EISBN: 978-1-62708-281-5
... discussion considers the burning process on a macroscale, where it comprises heating, decomposition, ignition, combustion, and propagation. The rate of heating, or temperature rise, depends on the flow rate of applied heat; temperature differential; material properties such as specific heat, thermal...